Intramolecular Direct Arylation and Heck Reactions in the Formation of Medium-Sized Rings: Selective Synthesis of Fused Indolizine, Pyrroloazepine and Pyrroloazocine Systems
作者:Estibaliz Coya、Nuria Sotomayor、Esther Lete
DOI:10.1002/adsc.201400075
日期:2014.5.26
The intramolecular palladium‐catalyzed reaction of N‐(iodoarylalkyl)pyrroles can be applied for the selective synthesis of medium‐sized rings by choosing the appropriate catalytic systems to direct the reaction to the alkene or to the pyrrole nucleus. These reactions can also be extended to the corresponding heteroaryl halides. Thus, reaction conditions have been established to access selectively to
N-(碘代芳基烷基)吡咯的分子内钯催化反应可通过选择合适的催化体系,将反应导向烯烃或吡咯核,用于中型环的选择性合成。这些反应也可以扩展至相应的杂芳基卤化物。因此,已经建立了反应条件以选择性地进入(杂)融合的吲哚嗪,吡咯并氮杂和吡咯并偶氮嗪系统。